At STEER, we build advanced co-rotating materials platform technologies with precision engineering for a wide range of engineering plastics, from the basic variant to those created for specific applications and industries.

Whether it’s working with difficult-to-process plastics with high operating temperatures, viscosities and sensitivities or enhancing properties of commodity resins, creating high-end polymers known for strength, high temperature performance and structural properties, we ensure that you get the best possible quality, stability, strength and value.

BETTER PROPERTIES. BETTER PERFORMANCE

STEER’s platforms and elements are the preferred choice of companies and manufacturers in over 35 countries across the globe. STEER materials platform technology is used to create a variety of advanced engineering plastics for a wide range of industries from automotive to electric, construction to food and packaging.

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POPULAR ENGINEERING PLASTICS

PEEK — a polyetheretherketone with excellent individual characteristics and is part of the thermoplastic high-temperature plastic group as it maintains its property profile in high-temperature ranges above 100 °C. PEEK, combined with chopped fiber is used in high-strength applications over 150C. APPLICATION EXAMPLES: Piston rings, Fastening hardware, Medical implants, Sliding components

PEI — Polyetherimide (PEI) is an thermoplastic with high mechanical strength and rigidity. The material has high degrees of toughness, chemical resistance, superior limiting oxygen index and dimensional stability, besides demonstrating a high creep strength over a wide temperature range. APPLICATION EXAMPLES: Aerospace parts

PPS — Polyphenylenesulphide (PPS) is a high temperature thermoplastic and high resistant polymer with high strength and hardness. Besides it has a low water absorption, good dimensional stability and excellent electrical properties. APPLICATION EXAMPLES: Coil formers, Bobbins, Terminal blocks, Electrical components, Lamp housings.

PBT — belongs to the group of thermoplastic linear polyesters. PBT is typically reinforced with fibers and provides for high density, high degree of toughness and good thermal and dimensional stability. The fiber reinforcement makes PBT suitable for higher strength requirements like in industrial components and electronics industries. APPLICATION EXAMPLES: High power lighting components, Ignition rotors, Distributor caps

PA6, PA66 — Technical thermoplastics reinforced with fiber, PA6 and PA66 (with a higher melting point that PA6) have a high thermal stability and are best suited for automotive industries and mechanical engineering applications because of their high toughness and chemical and abrasion resistance. APPLICATION EXAMPLES: Underbonnet automobile parts and most components on Wind-surfers.

POM — a thermoplastic produced by the polymerisation of formaldehyde. It is a versatile engineering plastic possessing varied properties, designed for use in construction and automotive industries. It combines high rigidity, with mechanical strength and affords good elastic properties, high toughness, dimensional stability and excellent sliding friction properties. APPLICATION EXAMPLES: Gears , Sliding and guiding elements, Housing parts, Nuts, Fan wheels, Pump parts, Valve bodies.

PPE + PS — A standard thermoplastic, PPE is usually only used after being modified by the addition of PS and reinforced with glass fiber. The material provides for high strength, hardness and rigidity with low moisture adoption. Due to its excellent dimensional stability and impact strength, it is suitable for components that face high levels of stress, like electronics. APPLICATION EXAMPLES: Electronic equipment like Printer cartridges, Housing equipment

The compounding process is a highly specialised one and STEER is a master specialist. We think through every possible detail when it comes to designing, creating and implementing platform technologies that give you the highest possible quality at the best possible value.

KEY POINTS FOR ENGINEERING PLASTICS PROCESSING

Can include extruder from 18mm to140mm in size

High volume screws with low shear attributes and a Do/Di of 1.5 or more is preferable

Feed materials are usually of a high bulk density

Compounding energy requirements vary significantly depending on the melt viscosity of the base resin and the content of reinforcements

Line configuration may be horizontal or vertical depending on manufacture volumes

Reinforcements are frequently added downstream, though filler levels are light to moderate.

A typical process section for engineering thermoplastics is 36D-40D in length.

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STEER’s innovative co-rotating twin-screw extruder (TSE) platforms make the compounding process consistent, effective, efficient and scalable. Only STEER platforms are built using the revolutionary ‘Fractional-Lobe’ geometry, replacing the conventional integer-lobe design. This patented design screw geometry eliminates shear peaks, is self-cleaning and ensures that energy is transferred uniformly to the materials being processed. It creates significant improvements in product quality and provides manufacturers with the capability and control required to work with sensitive materials. Besides, this design reduces the energy consumed considerably, increasing overall efficiencies.

LEARN MORE ABOUT STEER’S ADVANCED MATERIALS PLATFORM TECHNOLOGY AND PATENTED SPECIAL ELEMENTS

For any additional information on our technology for Engineering Plastics or for custom requirements do write to us at info@steerworld.com or you can contact our key representatives depending on your location.

Brochure for Engineering Plastics

ABOUT STEER

STEER co rotating twin screw extruder is the creator of advanced materials platform technology that effectively transforms and functionalises materials in the field of plastics, pharmaceuticals, food & nutraceuticals, biomaterials and biorefining.